Module org.eclipse.persistence.jpa.jpql

Package org.eclipse.persistence.jpa.jpql.tools

Class JPQLQueryContext.QueryExpressionVisitor

java.lang.Object

org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor

org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor

org.eclipse.persistence.jpa.jpql.tools.JPQLQueryContext.QueryExpressionVisitor

All Implemented Interfaces:

ExpressionVisitor

Enclosing class:

JPQLQueryContext

protected static class JPQLQueryContext.QueryExpressionVisitor
extends AbstractTraverseParentVisitor

This visitor is responsible to retrieve the Expression that is the beginning of a query. For a subquery, it will retrieve SimpleSelectStatement and for a top-level query, it will retrieve JPQLExpression. The search goes through the parent hierarchy.

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	expression	The Expression that is the beginning of a query.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	QueryExpressionVisitor()

Method Summary

Modifier and Type	Method	Description
void	visit(JPQLExpression expression)	Visits the JPQLExpression expression.
void	visit(SimpleSelectStatement expression)	Visits the SimpleSelectStatement expression.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor

visit

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

expression

protected Expression expression

The Expression that is the beginning of a query.

Constructor Details

QueryExpressionVisitor

protected QueryExpressionVisitor()

Method Details

visit

public void visit(JPQLExpression expression)

Description copied from interface: ExpressionVisitor

Visits the JPQLExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractTraverseParentVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(SimpleSelectStatement expression)

Description copied from interface: ExpressionVisitor

Visits the SimpleSelectStatement expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit